Treatment method of aged rice alcohol waste mash

The invention relates to the field of sewage treatment, and discloses a treatment method of aged rice alcohol waste mash. The method comprises the following steps: sequentially carrying out primary anaerobic treatment, air floatation treatment, secondary anaerobic treatment and aerobic treatment on aged rice alcohol waste mash, wherein the air floatation treatment comprises a step of adding a flocculating agent, and the air floatation treatment enables the protein content to be reduced by more than 80% by weight; and the protein content of the aged rice alcohol waste mash is 22g/L or above. According to the invention, 30% of residual organic matters such as protein, fat, cellulose, ash and the like after the aged rice alcohol waste mash is subjected to alcohol fermentation can be convertedinto biogas energy through a composite anaerobic technology, and the conversion rate reaches 95% or above so that wastes can be reused as resources. 本发明涉及污水处理领域，公开了一种陈化水稻酒精废醪的处理方法。该方法包括将陈化水稻酒精废醪依次进行一级厌氧处理、气浮处理、二级厌氧处理和好氧处理；其中